Canon Speedlite 600EX-RT - Manual (Page 52)

50
' Radio Transmission Wireless Flash Shooting
Shooting with a Different Flash Mode set for Each Group
(p.65)
Wireless shooting using radio transmission has advantages over wireless
shooting using optical transmission, such as being less affected by
obstacles, and not having to point the slave unit’s wireless sensor toward
the master unit. The main functional differences are as follows.
*1, *2 and *3: Some restrictions apply depending on the camera that you use.
(Refer to *1: p.51, 65; *2: p.67; and *3: p.68.)
Difference between Radio Transmission and Optical Transmission
Function Radio Transmission Optical Transmission
Transmission distance Approx. 30 m (98.4 ft.)
Approx. 15 m (49.2 ft.)
(indoors)
Firing group control
Up to 5 groups*
1
(A/B/C/D/E)
Up to 3 groups
(A/B/C)
Slave unit control Up to 15 units No restriction
Channel Auto, Ch. 1 - 15 Ch. 1 - 4
Wireless radio ID 0000 - 9999 –
Operations
from slave
unit
Test flash firing –
Modeling flash *
2 –
Release *
3
–
A
B
C
E
D
Manual flash
Manual flash
Auto external
flash metering
E-TTL II
Manual flash
* The flash mode settings are
indicated only as an example.
Ceiling
COP
Y